DYN Updater seems to be working, but...

DYN Updater (v5.4.6) seems to be working, but the IP it is "finding" is not the IP of the router (it's not even a close number). I have to go in and manually set the IP. So, DYNDNS is properly routing my requests right now. But the next time DYN Updater runs, it will update with the incorrect IP.

7 Replies

The updater takes your IPv4 address from checkip.dyndns.com. If this is not the IP address of the router, then your ISP uses NAT, and you are in big troubles reaching your network from outside.See here (Section: Before you begin).

Ok, then you know that 10.x.x.x are private addresses, not routable over the public internet. Your ISP uses NATting. You're out of luck reaching your network from outside.

Your options are:

Change the product/service with Comcast to get a dedicated (non-shared) public IPv4 address, be it a dynamic or static, no matter what.

Change the ISP to one who offers internet connection with a dedicated (non-shared) public (dynamic or static) IPv4 address.

Just in case you also have IPv6 connectivity: IPv6 addresses are usually assigned per device, so if the client side (from where your service shall be accessed) has also IPv6 connectivity, you can get your service work as an IPv6-only service, but not reachable via IPv4. In this case an update client must run on the device where your service is, be it Dyn's Updater or another.

And just a further note to be on the safe side:I hope you have checked the router's IP address on the WAN side, not on the LAN side...LAN IP addresses are irrelevant for this matter.